truth behind the best way to break in a 400ex

[400exrules]

ok, ive heard u ride em hard for a break in and they will beat piped 400ex's

and ive heard breaking them in hard, damages things and istn good

ive heard to just break it in slow and easy by the manual

WHICH ONE?!

[400exrules]

cmon ppl i posted this in order to recieve information

how did u guys break it in

[Ralph]

somebody should take 2 new 400ex's and do a study,,,, send this idea to dirtwheels

[400exrules]

not dirtwheels, they'lle say both break ins make the 400ex suck *** cuz we know how DW is

[GOMER007]

nahhh just bag on it it ant gunna make it any faster if you just baby it:blah:

[bsb64]

Depends who you ask. I know guys that have been building and racing different machines for a lifetime that swear by breaking things in hard. I know others who believe the exact opposite. I wish I knew.

Here is an interesting article on this subject.............

http://www.mototuneusa.com/break_in_secrets.htm

go real easy on it for the first 40 minutes then vary it but dont hold it for 40 minutes then just ride normal let cool down in between 40 minute periods you can tel when there broken in because they rev quicker

[KASCHAK]

i kinda broke mine in hard. and it beats a slipon t4 with open airbox with k&n filter in a drag race. but that has more tourque for the hills. but this kid broke his in hard. brought it home started it for the first time and reved it. then waited 2 minutes and went and opened it up. i guess you have to be inbetween.

[Plante400]

No idea how the hell but my biek is bone stock with shredders and i inialate other PIPED 400ex's run em stock no problems i mean u gotta ahve after market a's axel shocks and what not but on a 400ex i say keep the engine stock, sure they will go faster but u will never have a problem with a stock engine. I like gettin props from gusy on other 400s that i smoke withy stocker.

Lol sorry i figured id say that cuz... i dont know

and they always tellin me how pc4 suck , there not good but there magical

[KASCHAK]

see me two. i let the kid ride mine and i rode his and mine still won. i get him off the line and he never gets in front. when my filter is dirty he gets the holshot and i pass him aroun 4th gear then i say ahead of him by a half a quad length

[Plante400]

haha that PC4 pipe i have in my info junk is a slip onm that i recently took off ive got teh stock slip on, on now i think she hammers i ate my buddies with a full white bros exhuast, thsi was on teh tar...

[Plante400]

and for teh record i think it went pretty sweet witht hat little slip on PC4, they dont do mcuh mroe but still ran pretty well

[RiPPiNiTuP7]

Your suppose to take it easy at first, then gradually ride it harder over a few tanks of gas.

[400exrules]

see this is where i get scared, i want to get the best i can out of a stock 400ex after the break in but im scared to break something in a different way then the manual says because i know nothing will get messed up that way plus its step by step instructions

[Plante400]

Bottom Line, its a honda, and honda equals bullet proof u arent going to have i problem i am almost sure, i woudltn lsitne to all that kooling ****, get used to yer quad then ride it ****in Hard lol

[400exrules]

is their a way to tell that you have broken it in or do u jsut assume you have after a tank or 2 of gas runs through it

Originally posted by freeride132
go real easy on it for the first 40 minutes then vary it but dont hold it for 40 minutes then just ride normal let cool down in between 40 minute periods you can tel when there broken in because they rev quicker

[Plante400]

Alright i suppose u know what your talkin abotu but how are u gonna hurt a 4-stroke honda, i could see if u were riding a dale, my friend is having Big problems with his, and its brand new, told him not to buy that junk...

[400exrules]

the votes are pretty even so wut should i do

[stepupmx]

Do what the manual says.

You cant hurt an engine by doing it the safe way...

[bradley300]

Originally posted by Plante400
i could see if u were riding a dale, my friend is having Big problems with his, and its brand new, told him not to buy that junk...
rowlrag broke in his dale at the John Penton gncc last year, no problem yet.

i heard from a guy at a drag strip that you should break in the motor the way you are gonna use it. this coming from a guy that puts major money in his motors, he said the first place his motor is started is the strip.

[400exrules]

ya im goin to some races tonight and ima ride my friends 400ex, and ask him how he broke it in, cuz he drag races

[hessianmx111]

Originally posted by Plante400
Alright i suppose u know what your talkin abotu but how are u gonna hurt a 4-stroke honda, i could see if u were riding a dale, my friend is having Big problems with his, and its brand new, told him not to buy that junk...
this kid i know locked up a 2001 1 year old honda xr100. i would break it in like the manual says.

There is a difference between what you guys are saying like ride it f'in hard, and beat the hell out of it like you would race and what mototune says. Mototune is breaking it in with specific things like sealing the rings and putting the engine under a load. NOT BEATING UP THE BIKE. Just ride, vary RPM, gears, and stay under 3/4 throttle for a couple tanks of gas. youll be fine :)

[4TraxRider]

Adjust your throttle stop to 50% and take some easy powerline trails for the first tank, the to 75% and some harder trails for second tank, then after that your good.

[Scott-300ex]

why isn't there an in between?

1. idle for 10 minutes

2. let it cool down until the cylinder is warm

3. repeat steps 1 and 2 two more times

4. ride around short shifting, keeping the revs down for a 15 minute period

5. repeat step 2

6. repeat steps 4 and 5 4 more times

7. go through the rest of the tank of gas just putting around, riding it kind of hard, but not revving it to the moon

8. afte rtha first tank of gas is through your ready to rip

Originally posted by nacsracer27
1. idle for 10 minutes

2. let it cool down until the cylinder is warm

3. repeat steps 1 and 2 two more times

4. ride around short shifting, keeping the revs down for a 15 minute period

5. repeat step 2

6. repeat steps 4 and 5 4 more times

7. go through the rest of the tank of gas just putting around, riding it kind of hard, but not revving it to the moon

8. afte rtha first tank of gas is through your ready to rip

Arent u not supposed to idle it? :confused: I heard that is bad for new cams. Also if u short shift make sure you dont bog bc that is also bad to do on a new engine.

[400exrules]

so basically if u break it in riding alittle more then soft or riding soft, it will be about fully broken in after 1 tank of gas? and will it be broken in after atleast 2 tanks of gas or should u check something?

[PHIL_B54]

i agree with quadmx18, and if i had know about mototune i would have followed it. i broke mine in somewhere in-between

if i win the lottery, i will do that test for you; atleast i wont be bias